Landscape Ecological Analysis of Green Network in Urban Area Using Circuit Theory and Least-Cost Path

Oh-Sung Kwon, Jin-Hyo Kim and Jung-Hwa Ra
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Oh-Sung Kwon: Department of Ecology & Environment, Gyeonggi Research Institute, Suwon 16207, Korea
Jin-Hyo Kim: Forestland Spatial Planning Division, Korea Forest Conservation Association, Daejeon 35262, Korea
Jung-Hwa Ra: Department of Landscape Architecture, Kyungpook National University, Daegu 41561, Korea

Land, 2021, vol. 10, issue 8, 1-23

Abstract: Quantitative securing of green space in already developed cities has many practical limitations due to socio-economic limitations. Currently, South Korea is planning a green network to secure and inject effective green space, but it is difficult to reflect it in the actual space plan due to the abstract plan. This study utilizes circuit theory and least-cost path methods for presenting a green network that is objectified and applicable to spatial planning. First, an analysis of the Least-cost Path revealed 69 least-cost paths between 43 core green areas of the study site. Most least-cost paths have been identified as passing through small green areas and streams in the city. Using the circuit theory, it was also possible to distinguish areas other than least-cost paths from areas with high potential for development, areas where target species are concentrated within corridors. In particular, areas with relatively high green network improvement effects were derived within and around corridors. This study is most significant in establishing and evaluating existing urban green networks, overcoming the limitations discussed at the linear level and expanding to the area level. To increase the utilization of this study in the future, field surveys and monitoring studies on target species need to be supplemented.

Keywords: linkage mapper; centrality; pinch-point; barrier; connectivity (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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